by Supmo August 13, 2018

by Myoga1 February 24, 2004

by b i g up December 06, 2019

lets get all thwacked out, go to the titty bar and rub tuna on ourselfs then go home to our women...
by Dann¥ June 06, 2007

by Dan GleeSack December 08, 2012

To firmly slap ones penis across another persons face i.e. to be either very manly or very homosexual.
"Dude! That little limp wristed faggot just thwacked me!"
One jock buddy says to another...
"WHOA! Billy's asleep, someone thwack him!"
One jock buddy says to another...
"WHOA! Billy's asleep, someone thwack him!"
by Steven Spears April 14, 2005
